The Plumas County sheriff and neighbors in a residential area near Lake Almanor told the Reno Gazette-Journal on Wednesday that law enforcement narrowed in on local resident Alan Frazier, 51, as the shooter. The Reno Police Department has not officially identified the shooter.

"His residence was secured last night with a protective sweep to ensure no additional victims," Plumas County Sheriff Greg Hagwood said. "The Reno Police Department has executed a search warrant at his home in the hopes that they could find his next of kin."

Late Tuesday, Reno police towed a silver GMC pickup truck from the parking lot in front of the Center for Advanced Medicine B on Second Street - the site of Tuesday's shooting. Using the license plate number on the truck, the Reno Gazette-Journal found it belonged to the Lake Almanor resident. Reno police on Wednesday searched Frazier's one-story home that's surrounded by wood piles and a fence.

Neighbors Mike and Jeanette Hawthorne said detectives came to their home Tuesday night and told them Frazier was involved in the shooting at the Center for Advanced Medicine on the Renown campus.

They later learned Frazier had killed himself.

Mike Hawthorne said the last time he spoke to Frazier, "He told me he wasn't coming back."

Jeanette Hawthorne described Frazier as a hunter and fisherman who would hit golf balls for his dog to chase. During snowstorms he would plow everyone's driveway with his Bobcat.

Neighbors Bob and Jan Hammill said they've known Frazier for 20 years and that he suffered from medical complications from a surgery he had done a few years ago and was in need of help. They said Frazier had the procedure done in Reno, but did not know which doctor performed it.

They added he used to work at a nearby wood burning power plant that closed two years ago and they weren't sure if he was employed.

"It blows my mind what happened," Bob Hammill said. He added, "I think he was in a lot of pain."

Said Jan Hammill, "He's a very good man and I'm shocked he hurt other people."

Hagwood said he did not know Frazier. His home is in residential neighborhood adjacent to the lake, he said.

"Our office has had two contacts with him over the past 10 years," he said. "One time was for a disturbance and the other was because he was a victim of a vandalism.

"He is not widely known by members of the sheriff's department," he said, adding that he not know anything about the man's connection to Reno.

Valeriejean Setzer-Wegat, a resident of the town, said people in the community began talking about the shooting last night after hearing that the shooter lived in their area.

"It's a little tiny community like this, news travels fast," she said.